| 1, 8, 12, 16, 18, 24, 27, 30, 32, 36, 40, 45, 48, 50, 54, 56, 60, 63, 64, 70, 72, 75, 80, 81, 84, 90, 96, 98, 100, 105, 108, 112, 120, 125, 126, 128, 132, 135, 140, 144, 147, 150, 154, 160, 162, 165, 168, 175, 176, 180, 182, 189, 192, 195, 196
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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Same as A048098, but without the squares of primes.
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REFERENCES
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D. H. Greene and D. E. Knuth, Mathematics for the Analysis of Algorithms; see pp. 95-98.
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LINKS
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T. D. Noe, Table of n, a(n) for n=1..1000
Beeler, M., Gosper, R. W. and Schroeppel, R., HAKMEM, ITEM 29
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CROSSREFS
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Cf. A006530. Complement of A063538.
Sequence in context: A166083 A091375 A083348 this_sequence A081925 A049199 A160392
Adjacent sequences: A063536 A063537 A063538 this_sequence A063540 A063541 A063542
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Aug 14 2001
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